Gas-purifying plant.



H. LANE.

GAS PURIFYING PLANT. APPLICATION IIIILED JULY 16, mm.

1,025,918. I Patented May 7, 1912.

wnmssszs: m/ l/E/V 70/? HZWARD LANE.

A 770/P/VEVS NITED STATES PATENT OFFICE.

HOWARD LANE, 0F BIRMINGHAM, ENGLAND, ASSIGNOR T0 INTERNATIONALE WAS- SERS'IOFF AKTIENGESELLSCHAFT, 0F FRANKFORT-ON-THE-MAIN, GERMANY.

GAs-PURIFYING PLANT.

Application filed July To all whom it may concern Be it known that I, HOWARD LANE, a subject of the King of Great Britain, and resident of 125 Edmund street, Birmingham, in the county of Warwick, England, have invented certain new and useful Improvements in Gas-Purifying Plants, of which the following is a specification.

This invention relates to the purification of gases and more particularly to the purification of crude gases such as water gas, coal gas and other gases generated from carbonaceous fuel employed-as reducing agents in the process of producing hydrogen by the alternate oxidation and deoxidation of a metal. When this process of manufacturing hydrogen is-worked on a commercial scale it has been found that the efliciency of the 'contactmaterial in the reducing retorts tends to gradually decrease untilt-he process becomes almost inoperative owing to the deposition of sulfur on the surface of the contact material and the presence of sulfur and other impurities e. g. sulfurous acid, sulfureted hydrogen, carbon dioxid, moisture and the like Hence it is found necessary in practice to employ a greater amount of reducing gas than that theoretically necessary to carry out the reduction, thus con siderably increasing the working cost. 7

The object of the present invention is to provide means for purifying the gas more completely thanhas heretofore been usual, the invention consisting in the employment of a pump adapted to compress the impure gas to a pressure of several atmospheres and deliver it to a Washing tower containing coke or other neutral material through which a finely divided stream of water flows in the direction opposite to that of the stream of gas.

The invention will be described with refcronce to the accompanying drawingwhich shows an elevation partly in section of the gas purifying apparatus constructed in accordance with this invention.

a' is a pipe connecting the 1gas supply to the power driven pump 6 W ose outlet is connected to a pipe 0 conducting the gas under a pressure of several atmospheres to the Specification of Letters Patent.

Patented May '7, 1912.

16, 1910. Serial No. 572,410.

lower part of the washer d. The extremity of the pipe 0 within the washer is provided with a plurality of holes or nozzles for subdividing the stream ofascending gas. The washer d is partially filled with coke or other neutral material e and is provided with a spraying device f which is connected by a'pipe g to a water supply under pressure and serves to subdivide the descending stream ofwater which is withdrawn from the lower part of the washer through a pipe h.

j is a relief valve disposed at the upper extremity of the washer and connected to a gas receiver in the usual manner, said valve serving to maintain the necessary pressure Within the washer.

In operation the gas, at a low pressure, is drawn into the 'pum Z) through the pipe a and. is then forced t rough the pipe 0 and delivered to the lower part of the washer in which it ascends through the neutral material and in contact with the descending stream of water, the chemical" impurities (e. g. sulfurousacid, sulfureted hydrogen, carbon dioxid) contained in the gas either becoming condensed or dissolved in the water and the purified gas passing away through the relief valve j to a gas receiver rated with impurities and is withdrawn from the base of the washer through the pipe h. t

Claim:

In apparatus for purifying crude gas, the

combination of a closed fluid-tight vessel, means for introducing crude gas under pressure into said vessel, means for introducing water under pressure into said vessel, means for causing a thorough intermingling of gas and water, an outlet conduit and a relief valve in saidconduit adapted to operate to allow the escape of purified gas through said conduit,when the pressure in said vessel exceedsa certain predetermined amount. HOWARD LANE.

Witnesses:

NORMAN S. BARLOW, FRANK V. NEALE. 

